INT 21 - LANtastic - DISABLE ACCOUNT                                            
	AX = 5F86h
	ES:DI -> ASCIZA NUL-terminated ASCII string.	The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h.  Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. machine name and password in form "\\machine\password"
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	must be logged into the named machine and concurrent logins set to 1
	  by NET_MGR.  Requires system manager to re-enable account.